<template>
  <div class="login_container">
    <div class="login_box">
      <div class="avatar_box">
        <img src="../assets/logo.png" alt />
      </div>
      <el-form  label-width="0" class="form_login" :model="loginForm" :rules="loginRules" ref="loginFormRef" >
          <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input prefix-icon="iconfont icon-user" v-model="loginForm.username" type="text"></el-input>
        </el-form-item>
        <!-- 密码 -->
         <el-form-item prop="password">
          <el-input prefix-icon="iconfont icon-3702mima" v-model="loginForm.password" type="password"></el-input>
        </el-form-item>
         <el-form-item class="btns">
             <el-button type="primary" @click="login">登录</el-button>
             <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data: function () {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 3, max: 15, message: '长度在 3 到 15个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 表单重置
    resetLoginForm () {
      this.$refs.loginFormRef.resetFields()
    },
    login () {
    // 表单预先验证
      this.$refs.loginFormRef.validate(async valid => {
        if (!valid) return
        const result = await this.$http.post('login', this.loginForm)
        if (result.data.meta.status !== 200) return this.$message.error('用户名或密码错误')
        this.$message.success('登陆成功')
        // console.log(result.data)
        window.sessionStorage.setItem('token', result.data.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
  position: relative;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    background-color: #fff;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    };
  }
}
.form_login{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
.btns{
    display: flex;
    justify-content: flex-end;
    }
</style>
